Improvement in toe-calk bars



UNITED STATES PATENT OFFICE,

RALPH B. GAS'WELL, OF SPRINGFIELD, MASSACHUSETTS.

IMPROVEMENT lN TOE-CALK BARS.

Specification forming part of Letters Patent N0. 112,321, dated March 7,1871; antedated March 2, 1871.

I, RALPH B. OAsWELL, of Springfield, Hampden county, Commonwealth ofMassachusetts, have invented an Improved Bar for Toe-Oalks, of which thefollowing is a specification:

Nature and Object of the Invention.

My invention relates to a toe-call: bar intended to be cut into blanks,and formed of iron and steel inoombination, ina peculiar.

manner, the steel beingpartially covered on each side with iron, andprojecting above the iron in a triangular shape to form the web fromwhich the spurs are to be punched or out, the web or steel portionextending beneath the iron at the bottom of the bar sufiieiently tocompose a wear-edge; and the object of this invention is to form a barin which the iron on each side of the steel furnishes the stock to comeagainst the shoe or shoulders, and, wearing off in use from the sides ofthe steel faster than the steel itself, leave the latter to always forma sharp edge for thecalk. The sharp spur for the calk, being cut out ofthe upward] y-proj ectin g steel, can be driven into the shoe inattachin g the calk, as in prac-' tice I have found iron spurs totallyinefficient, for the reason that about one out of three or four willcrumble under the blows of the hammer before entering the shoe; but byhaving the spurs steel, and shaped as shown in my patent of June 11,1867, No. 65,723, this objection is entirely obviated.

The bar in use being rolled double, and the stock punched out of the webto leave the spurs, the latter are always dull at the point,

I and, being of iron, are necessarily so to insure sufficient strength.This renders it necessary to punch a hole in the shoe for the receptionof the iron spur, which even then crumbles frequently, as beforementioned.

v Description of the Accompanying Drawing.

Figure I shows a side view of one of my bars. Fig. II shows an end Viewof the same.

General Description.

A is the steel, as shown in Fig. II, projecting in a triangular formabove the triangular iron sides B D of the bar, the shorter sides ofthese forming a shoulder on each side of the steel to join with the shoeby welding, and the steel also projecting far enough below the sides B Dto furnish a sharp wear-edge, E.

It will be readily seen that in use the calk will be constantly sharpinstead of dulling, as would be the case were the calk composed entirelyof steel or iron, or of iron covered by steel.

Claim.

RALPH B. OASWELL.

Witnesses: R. F. HYDE,

L. V. SMITH.

